/*
 * Copyright (C) 2010 Moduad Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.androidpn.client;

import org.apache.log4j.Logger;

/**
 * A thread class for recennecting the server.
 * 
 * @author Sehwan Noh (devnoh@gmail.com)
 */
public class ReconnectionThread extends Thread {

	private Logger logger = Logger.getLogger(ReconnectionThread.class);

	private final XmppManager xmppManager;

	private int waiting;

	ReconnectionThread(XmppManager xmppManager) {
		this.xmppManager = xmppManager;
		this.waiting = 0;
	}

	public void run() {
        try {
            while (!isInterrupted()) {
                logger.debug("Trying to reconnect in " + waiting()
                        + " seconds");
                Thread.sleep((long) waiting() * 1000L);
                xmppManager.connect();
                waiting++;
            }
        } catch (final InterruptedException e) {
            xmppManager.handle(new Runnable() {
                public void run() {
                    xmppManager.getConnectionListener().reconnectionFailed(e);
                }
            });
        }
    }

	private int waiting() {
		if (waiting > 20) {
			return 600;
		}
		if (waiting > 13) {
			return 300;
		}
		return waiting <= 7 ? 10 : 60;
	}
}
